As verbs the difference between wall and walled
is that
wall is to enclose with a wall or
wall can be to boil while
walled is (
wall).
As a noun wall
is a rampart of earth, stones etc built up for defensive purposes or
wall can be (chiefly|dialectal) a spring of water or
wall can be (nautical) a kind of knot often used at the end of a rope; a wall knot or wale.
As an adjective walled is
pertaining to a wall.